Universal Blocking
by Gvoper
Universal Blocking is a server-side control mod that stops chosen items, blocks, crafts and mob spawns from existing in a world, and it is required on the server.
What it does
Rules name the target by exact ID, by wildcard pattern with a prefix or suffix, or by a tag such as forge:ingots or minecraft:logs. Each rule can combine up to 11 configurable flags, so a server can block a block from being placed, an item from being crafted, a mob from spawning or an interaction without affecting anything else. Population limits cap how many of a mob exist per dimension, for example 5 cows, and the excess despawns.
The mod suits hardcore survival servers, SMP worlds, custom modpacks and adventure maps where the owner wants to restrict parts of the game. Hidden items disappear from the Creative tabs and from Just Enough Items (JEI) search, and some mob rules still let bees leave their hives while suppressing their sound spam. Server owners can also prevent specific zombies from spawning. Architectury API is required on Fabric and Forge, and Fabric API is required on Fabric.
The server needs Universal Blocking, and players may add it for a client-side view, but clients can join without it. Files are published for Fabric, Forge and NeoForge across 5 release versions 1.19.2 – 1.21.6, with 5.0 as the latest file for Fabric, Forge and NeoForge, under All rights reserved, so the mod is not open source.
Key features
Targeted rules
Rules match items, blocks, crafts, mob spawns and interactions by exact ID, wildcard pattern or tag.
Combinable flags
Up to 11 flags can be set on a single rule to reach the exact behavior a server needs.
Population limits
A cap on mobs per dimension removes the excess, as with a limit of 5 cows per dimension.
Hiding from interfaces
Blocked items can be removed from Creative tabs and JEI so players do not see them.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Optional 1
Use cases
Who it’s for: Server owners, modpack authors and map makers who want to restrict what can exist in their world. Players who only join a server need no part of the mod.
How it compares
Universal Item Tags is server-side only and open source under the GNU Lesser General Public License v2.1 only, with files for 1.19 – 1.20.2 on Forge and NeoForge. SitOnEverything requires the server and is under the MIT License across 1.19.2 – 26.3 on Fabric, Forge and NeoForge. Universal Blocking is not open source and works 1.19.2 – 1.21.6 on Fabric, Forge and NeoForge.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Universal Blocking | Fabric, Forge and NeoForge | 1.19.2 – 1.21.6 | Server required, client optional | 2026-06-07 |
| Universal Item Tags | Forge and NeoForge | 1.19 – 1.20.2 | Server-side only | 2023-11-17 |
| SitOnEverything | Fabric, Forge and NeoForge | 1.19.2 – 26.3 | Server required, client optional | 2026-09-18 |
Questions
Does Universal Blocking need Architectury API?
Can clients join a server that runs Universal Blocking?
Does Universal Blocking work with Just Enough Items?
In the catalog
Universal Blocking is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 13,625 mods support Minecraft 1.21.6.
More from Gvoper
Similar mods
What the author says
Control your world. Restrict everything. Universal Blocking is a powerful server-side tool that gives you absolute control over what can and cannot exist in your Minecraft world. Whether you're running a hardcore SMP, a custom modpack, or an adventure map — this mod lets you restrict any item, block, craft, mob, or…
Official listing
- Modrinth page
- modrinth.com/mod/universal-blocking
- Owner
- Gvoper
- Published
- 2025-03-08
- Updated on Modrinth
- 2026-06-07
- Facts verified
- 2026-10-15